{"id":"CVE-2019-1003009","aliases":["GHSA-2h95-4xw9-m68j"],"url":"https://o3.security/vulnerability/CVE-2019-1003009","summary":"Jenkins Active Directory Plugin Improper certificate validation with StartTLS","details":"An improper certificate validation vulnerability exists in Jenkins Active Directory Plugin 2.10 and earlier in src/main/java/hudson/plugins/active_directory/ActiveDirectoryDomain.java, src/main/java/hudson/plugins/active_directory/ActiveDirectorySecurityRealm.java, src/main/java/hudson/plugins/active_directory/ActiveDirectoryUnixAuthenticationProvider.java that allows attackers to impersonate the Active Directory server Jenkins connects to for authentication if Jenkins is configured to use StartTLS.","published":"2019-02-06T16:29:00.530Z","modified":"2026-07-08T16:07:29.968004Z","cvss":{"score":7.4,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.plugins:active-directory","fixedVersion":"2.11"}],"fix":{"url":"https://github.com/jenkinsci/active-directory-plugin/commit/520faf5bb1078d75e5fed10b7bf5ac6241fe2fc4","label":"jenkinsci/active-directory-plugin@520faf5"},"references":[{"type":"ADVISORY","url":"https://jenkins.io/security/advisory/2019-01-28/#SECURITY-859"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1003009"},{"type":"WEB","url":"https://github.com/jenkinsci/active-directory-plugin/commit/520faf5bb1078d75e5fed10b7bf5ac6241fe2fc4"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/active-directory-plugin"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T16:07:29.968004Z"}}